{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["product producer", "cause effect", "else", "entity origin"], "input": "the series comprises some re-issues of the previous books , as well as new titles ."}
{"product producer": [], "cause effect": [], "else": [], "entity origin": []}